Dormer A412 HSS High Speed Steel Step Drill Bit with 118 Degree Pilot and 90 Degree Chamfer, Size M8, Single Pack

• 118 Degree Pilot and 90 Degree Chamfer Recommended for creating chamfered clearance holes for standard metric threads
• Steam oxide finish - Prevent work piece material from sticking to the cutting edge
• Specific pilot dimeter and length Designed to create the correct clearance drilling diameter and depth for standard threads
• Premium HSS material - Can be used for drilling many materials including steels, aluminium, stainless steel
• Versatile product - Can be used in both CNC and conventional machines

A412 has a 118 degree point angle on the drill pilot and a 90 degree chamfer and is designed to drill chamfered clearance holes for standard metric threads. To make it easy to select the correct size to create a hole to apply the thread, the drill diameters are specified in metric coarse thread form sizes. Just choose the metric thread form diameter to match the thread you want to create in the hole and you can be sure you have the correct clearance and depth for standard threads. The A412 has a steam oxide finish to help stop work piece material from sticking to the tool and is manufactured from High Speed steel which means it can be used to drill many materials including stainless steel, aluminium and various steels. It is suitable for both CNC and conventional machines.